Shop By Product Matching "Dorman"
Choose your Engine for your 1978 GMC G25
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- Harmonic Balancer Assembly
- Direct Replacement
- Product Attributes:
- Keyway Type:
- Oui
- Sí
- Yes
- Marcas de grados: Sí
- Grade Type:
- Reemplazo Estándar
- Standard Replacement
- Mounting Hardware Included:
- Oui
- Sí
- Yes
- Color:
- Gray
- Gris
- Degree Markings:
- Oui
- Yes
- Drive Belt Type:
- Serpentina
- Serpentine
- Bolt And Washer Included:
- No
- Non
- Contenidos del paquete:
- 1 Hoja De Instrucciones
- 1 Polea De Cigüeñal
- Mounting Hole Quantity:
- 1
- 1 Ensamble De Manguera Del Calentador
- Keyway Type:
-
Features:
- Ideal replacement - this harmonic balancer assembly exactly matches the fit and function of the original harmonic balancer for a direct replacement
- Durable construction - stringent specifications and careful construction help ensure longevity
- Thoroughly tested - this harmonic balancer has undergone dimensional verification, material validation and functional testing
- Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
- This direct replacement harmonic balancer features a stress-resistant rubber bond to properly absorb engine vibration. Stringent standards help ensure excellent tensile and impact strength for greater durability.
This Part Fits the Following OEM/Substitute Numbers:
102042, 102043, 12551538, 40589352208051738, 6272222, 8062722220, 8125515380, D9TZ6312A, DA3502, P-GM350CHD, PB1046N, PC-1021, SK594002
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1978 - GMC G25 | V | - | 8 Cyl 5.7L | 350 |
- Differential Ring and Pinion Gear Set
- 8.5 In. Ring Gear w/3.42 Axle Ratio
- Product Attributes:
- Juego de instalación incluido: No
- Gear Ratio: 3.42
- Contenidos del paquete: Engranajes De La Corona Y El Piñón
- Installation Kit Included:
- No
- Non
-
Features:
- Direct replacement - this ring and pinion set matches the fit and function of the original components on certain vehicle applications
- Effective fix - eliminates grinding and whining from failed original bearings
- Thoroughly tested - vehicle try-on testing and rigorous quality control measures ensure longevity
- Trustworthy quality - backed by team of designers and engineers in the United States
- This differential ring and pinion directly replaces the original equipment on specific vehicle years, makes and models.
This Part Fits the Following OEM/Substitute Numbers:
1258710, 26037720, 742G730C, ZG GM8.5-3.42
Additional Fitment Information:
| Vehicle | Position |
|---|---|
| 1978 - GMC G25 | Rear |
- Engine Oil Pan
- Product Attributes:
- Engine Oil Cooler Return Fitting:
- No
- Non
- Maximum Depth: 7.75
- Sump Location:
- Arrière
- Rear
- Trasero
- Drain Thread Size: M14x1.5
- Installation Hardware Included:
- No
- Non
- Baffled:
- Oui
- Sí
- Yes
- Windage Tray Included:
- No
- Non
- Dipstick Port:
- No
- Non
- Gasket Or Seal Included:
- No
- Non
- Sump Type:
- Húmedo
- Wet
- Maximum Width: 10.25
- Color:
- Black
- Negro
- Noir
- Contenidos del paquete: Cárter De Aceite
- Crank Shaft Wiper Included:
- No
- Non
- Kick Out Type Pan:
- No
- Non
- Drain Plug Included:
- Oui
- Sí
- Yes
- Pickup Included:
- No
- Non
- Material:
- Acero
- Steel
- Engine Oil Cooler Return Fitting:
-
Features:
- Direct replacement - this engine oil pan is made to match the original pan on specific vehicles
- Complete assembly - includes replacement pan and drain plugs to match original components
- Durable design - high-strength coating prevents future corrosion
- Trustworthy value - backed by team of engineers and quality control experts in the United States
- Oil pan leaking? This engine oil pan is precision-engineered to match the original equipment pan on specific vehicle years, makes and models for a reliable replacement.
This Part Fits the Following OEM/Substitute Numbers:
0465221, 103036, 14079399, 3310023, 3312469904732659, 360010, 3974252, 501094, GMP08A, IGMP08A, OP37415, SK264104
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1978 - GMC G25 | V | - | 8 Cyl 5.7L | 350 |
- Spindle Dust Cap 2-3/32 In. Diameter
- Product Attributes:
- Contenidos del paquete: 5 Tapas Cubrepolvo De Punta Del Eje
-
Features:
- Direct replacement - this wheel bearing dust cap is designed to match the fit and function of the original part on specified vehicles
- Ideal solution - this dust cap is a reliable replacement for an original part that is missing or has failed due to fatigue
- Durable construction - this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
- This wheel bearing dust cap is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
-
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.
This Part Fits the Following OEM/Substitute Numbers:
14003444
Additional Fitment Information:
| Vehicle | Position |
|---|---|
| 1978 - GMC G25 | Front |
- Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford
- Product Attributes:
- Contenidos del paquete: 25 Tuercas
-
Features:
- Direct replacement - this engine connecting rod nut matches the fit and function of the factory part on specified years, makes and models
- Ideal solution - this nut is a reliable replacement for an original part that is missing or has failed due to fatigue
- Durable construction - this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
- This engine connecting rod nut is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
This Part Fits the Following OEM/Substitute Numbers:
225854, 3866766
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1978 - GMC G25 | V | - | 8 Cyl 5.7L | 350 |
- Door Hinge Pin And Bushing Kit - 2 Pins, 8 Bushings
- Package Quantity: 1 Packaging Type: Box
- Product Attributes:
- Pin Material:
- Acero
- Steel
- Bushing Inside Diameter: 0.344
- Contenidos del paquete: 2 Clavijas Y 8 Bujes
- Bushing Outside Diameter:
- 0.42
- 0.49
- Pin Material:
-
Features:
- Direct replacement - this door hinge pin & bushing kit is designed to match the original pin and bushing required to restore the alignment and proper function of a door on specified vehicles
- Ideal solution - this pin and bushing are reliable replacements for original components that have failed due to wear
- Durable construction - this kit is made from quality components to ensure reliable performance and a long service life
- Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
- This door hinge pin & bushing kit is designed to match the original parts required to restore door alignment and function on specified vehicles. Made of quality components, this kit is engineered for reliable performance and durability.
-
Suggested Purchase Quantity: 4
- Most jobs typically require 4 of this item.
This Part Fits the Following OEM/Substitute Numbers:
20046147, 20429500, 6271989, 9712804, 9721917
Additional Fitment Information:
| Vehicle | Position |
|---|---|
| 1978 - GMC G25 | Rear |
- Door Lock Actuator, Front, Rear
- Product Attributes:
- Connector Gender:
- Macho
- Male
- Mounting Hardware Included:
- No
- Non
- Terminal Type:
- Aspa
- Blade
- Contenidos del paquete: 1 Actuador Del Seguro De La Puerta
- Material:
- Plastic
- Plástico
- Connector Gender:
-
Features:
- Reliable replacement - this door lock actuator has undergone extensive quality and safety performance testing
- Perfect fit - engineered to provide the same fit and function of the original actuator on specific vehicle years, makes and models
- Safety compliant - part has undergone simulated crash testing under government guidelines
- Long-lasting repair - cycle testing in an actual vehicle door verifies effective usage for years
- This door lock actuator has undergone extensive quality and safety testing to ensure reliable performance. It is engineered to provide a direct replacement for the stock actuator on specific vehicle years, makes and models.
Additional Fitment Information:
| Vehicle | Position |
|---|---|
| 1978 - GMC G25 | Front Right |
- Door Lock Actuator, Front, Rear
- Product Attributes:
- Connector Gender:
- Macho
- Male
- Mounting Hardware Included:
- No
- Non
- Terminal Type:
- Aspa
- Blade
- Contenidos del paquete: 1 Actuador Del Seguro De La Puerta
- Material:
- Plastic
- Plástico
- Connector Gender:
-
Features:
- Reliable replacement - this door lock actuator has undergone extensive quality and safety performance testing
- Perfect fit - engineered to provide the same fit and function of the original actuator on specific vehicle years, makes and models
- Safety compliant - part has undergone simulated crash testing under government guidelines
- Long-lasting repair - cycle testing in an actual vehicle door verifies effective usage for years
- This door lock actuator has undergone extensive quality and safety testing to ensure reliable performance. It is engineered to provide a direct replacement for the stock actuator on specific vehicle years, makes and models.
This Part Fits the Following OEM/Substitute Numbers:
11P3, 16603085, 1719362, 1719363, 20021912, 20021913, 20432632, 20474092, 20474093, 20710114, 20710115, 22020256, 22062740, 22071946, 22071947, 22542026, 22542027, 3080699...VIEW MORE
Additional Fitment Information:
| Vehicle | Position |
|---|---|
| 1978 - GMC G25 | Front Left |
- Wheel Nut 1/2-20 Bulge Wheel - 3/4 In. Hex, 0.833 In. Length
- Verify lug nut to wheel mating surface for proper and safe fitment OE Replacement Or Custom Performance: Custom Performance Thread Direction: Clockwise (Right) Package Quantity: 10 Packaging Type: Box Thread Type: Fine Steel Thread Size: 1/2-20 Overall Length: 0.83 in Color: Chrome Wheel Nut Style: Bulge Seat Open End
- Product Attributes:
- Estilo del asiento: Base Cónica: 60°
- Threads Per Inch: 20
- SAE or Metric: Sae
- Grade Type: Regular
- Thread Direction:
- Clockwise (right)
- Rotar En El Sentido De Las Agujas Del Reloj (derecha)
- Washers Included:
- No
- Non
- Thread Type:
- Fine
- Fino
- OE Replacement Or Custom Performance:
- Custom Performance
- Rendimiento Personalizado
- Wheel Lock Key Included:
- No
- Non
- Wheel Nut Style: Bulge Seat Open End
- Hex Size: 3/4 In
- Diseño de extremo abierto: Sí
- Color:
- Chrome
- Cromo
- Estilo de la tuerca de la rueda: Base Saliente Extremo Abierto
- Thread Diameter: 0.5
- Contenidos del paquete: 10 Tuercas De La Rueda
- Seat Style: Conical Seat - 60 Deg
- Open End Design:
- Oui
- Yes
- Material:
- Acero
- Steel
-
Features:
- Direct replacement - these wheel lug nuts are designed to match the fit, function and performance of the original equipment hardware on specified vehicles
- Ensure fit - available in a variety of sizes and assortments, please check product dimensions and details to ensure you select the right wheel lug nut(s) for your application
- Durable construction - designed and manufactured to strict specifications for reliable performance
- Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
- These wheel lug nuts are designed to match the fit, function and performance of the original equipment hardware on specified vehicles. They are engineered from durable materials to exacting specifications for long service life and a perfect fit.
Additional Fitment Information:
| Vehicle |
|---|
| 1978 - GMC G25 |
- Differential Pinion Yoke Assembly
- 10.5 In. Ring Gear 14 Bolt Differential Cover 1410 U-Joint
- Product Attributes:
- Grade Type: Regular
- Mounting Hardware Included:
- No
- Non
- Mounting Hole Diameter: 0.312
- Articulación universal incluida: No
- Mounting Hole Quantity: 4
- Spline Quantity: 30
- U Bolt(s) Included:
- No
- Non
- Inside Diameter: 37.1
- Universal Joint(s) Included:
- No
- Non
- Perno en U incluido: No
- Color:
- Gray
- Gris
- Contenidos del paquete: 1 Yugo Del Piñón, 1 Protector Contra El Polvo
- Material:
- Acero
- Steel
-
Features:
- Direct replacement - this differential end yoke matches the fit and construction of the original yoke
- Excellent value - this replacement end yoke offers original equipment quality at a fraction of the price of dealer parts
- Quality materials - this end yoke is machined from cast iron for strength and is precision machined for reliability
- Validated fit - this differential end yoke has been tested to confirm accurate fit
- Worn or damaged differential end yoke causing driveline vibrations? This direct replacement end yoke matches the original equipment part for a trustworthy repair and reliable performance.
This Part Fits the Following OEM/Substitute Numbers:
YYGM14T141030S
Additional Fitment Information:
| Vehicle | Position |
|---|---|
| 1978 - GMC G25 | Rear Differential |
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